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Nanostructures fabricated in chalcogenide glass for use as surface-enhanced Raman scattering substrates

机译:在硫属化物玻璃中制造的纳米结构,用作表面增强拉曼散射基板

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摘要

We describe chalcogenide glass (ChG)-based nanostructures for use as substrates for surface-enhanced Raman scattering (SERS). Such substrates were fabricated by exploiting the photosensitivity of ChG. This allows convenient control of the shape, size, and spacing of the nanostructures. The substrates were used to investigate the sample-concentration and excitation-power dependences of SERS from Rhodamine 6G molecules. A sensitivity of 1 (mu)M was achieved at low excitation irradiance, and a semilinear concentration dependence was found for concentrations below 100 (mu)M, demonstrating the potential of these ChG-based SERS substrates for high-sensitivity quantitative analysis.
机译:我们描述了硫属化物玻璃(ChG)基纳米结构,用作表面增强拉曼散射(SERS)的基底。通过利用ChG的光敏性来制造这种基板。这允许方便地控制纳米结构的形状,尺寸和间距。底物用于研究来自罗丹明6G分子的SERS的样品浓度和激发功率依赖性。在低激发辐照度下,灵敏度为1μM,对于浓度低于100μM的半线性浓度依赖性,证明了这些基于ChG的SERS底物用于高灵敏度定量分析的潜力。

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